CC Lec - Specimen Flashcards
3 sources of blood
capillary puncture
venipuncture
arterial puncture
best method of blood collection for newborns and babies
capillary or skin punc
method of blood collection seldom used for aged individuals
capillary or skin punc
method of blood collection wherein sx usually used for chemistry analysis
venipuncture
sites of puncture in venipuncture
basilic vein
cephalic vein
median vein
vein for venipuncture pointed toward the body
basilic vein
vein for venipuncture pointed away the body
cephalic vein
used in the analysis if pO2, pCO2, blood pH
arterial blood
method of blood collection not done by ordinary RMTs
arterial puncture
sites of arterial puncture
brachial, femoral, radial artery
how to label specimen
last name, first name, MI
specimen or patient no.
when to label specimen
after collection/filling up the tube
number 1 reason of specimen rejection
hemolysis
in serum what ions are abundant
Na and Cl
inside cell what ions are abundant (and their ratios)
K (20:1)
Mg (10:1)
hemolysis of RBC leads to
false elevation of analyte concentration
straw colored yellow fluid
serum
liquid portion of clotted blood
serum
temperature of blood for test of CK
cold temp
temperature of Sx for LD
room temp
reasons of rejection
questionable labelling
hemolysis
QNS
Substance added to blood to prevent clotting
Anticoagulant
mechanism of action of anticoagulant
1) can precipitate, bind, complex Ca thus Ca is removed
2) by acting as antithrombin
stages of clotting process
generation of thromboplastin
conversion of prothrombin to thrombin
conversion of fibrinogen to fibrin clot
